345 



in 1909 (Mycol. 2:226. 1910) using telial material on M. glomerafa 

 from Kansas and in 1910 (Mycol. 4:18. 1912) successful infection fol- 

 lowed sowings with teliospores from M. racevwsa collected in North 

 Dakota. 



In 1914 (Mycol. 7:80. 1915) Arthur also showed that Puccinia tosfa 

 on Sporobolus asperifolms has for its aecial stage, Aecidium SjjJiaeral- 

 ceae. Successful infection of Sphaeralcea incana was obtained following 

 sowings of telial material from New Mexico. Infection of S. lobata was 

 also obtained when telial material from Texas was used. A comparison 

 of the aecia and of the telia showed P. tosta to be inseparable from the 

 form of Muhlenbergia. 



63. Puccinia Hieracii (Schum.) Mart. Flora Mosq. 226. 1817. 

 Uredo Hieracii Schum. Enum. Plant. Saell. 2:232. 1803. 



On Cichoriaceae : 



Hieracium scabrum Michx., Newark, Sept. 5, 1905, (1623) ; 

 Lewes, April 25, 1908, (2035). 



64. Puccinia Impatientis (Schw.) Arth. Bot. Gaz. 35:19. 1903. 

 Aecidium I'mpatientis Schw. Schr. Nat. Ges. Leipzig 1:67. 1822. 

 Puccinia perminuta Arth. Bull. Torrey Club 34:584. 1907. 



On Balsaminaceae: I. 



Impatiens aurea Muhl., Newark, June 17, 1907, (1664). 

 On Poaceae: II, III. 



Agrostis hyemalis (Walt.) B. S. P., Seaford, June 4, 1908, 



(2045). 

 Agrostis perrenans (Walt.) Tuckerm. Woodland Beach, Aug. 



1890, J. H. Holmes (Phan. spec. 312). 

 Elymus canadensis L., Newark, Aug. 23, 1907, II, (1722). 

 Arthur has shown that Aecidium Impatientis Schw. is connected 

 with a telial form on Elymus virginicus L. which previously had been 

 called P. rubigo-vera (Bot. Gaz. 35:18. 1903). He obtained the develop- 

 ment of aecia on Impatiens aurea following inoculation with germinat- 

 ing teliospores on Elymus virginicus from Indiana. Further cultures 

 made in 1903 and 1904 (Jour. Myc. 10:11. 1904; 11:57. 1905) gave 

 identical results when telial material fiom Indiana and Wisconsin were 

 used for inoculation. In 1909 (Mycol. 2:226. 1910) teliospores from 

 Elymus striatus were used by Arthur to successfully inoculate Impatiens 



